6.4 power stroke loosing power

[Loganwayne]

Truck is throwing a p003 code. High pressure fuel pump, from internet seems like it is fairly common it is the harness. Took it to Ford had pump load tested everything checked out. Today went to haul my Nissan and it was cutting power and not going over 45 on hills then on level ground jumped up to 75 like it had no issues. Going to change filters now.

anyone Had similar issues. I’m afraid it’s the high pressure fuel pump going out. Which seems like that’s my luck recently

 

[Monkeynono]

These are known for hp pump failure and injector failure. What your problem is exactly I don't know.... But they suck to fix, gotta pull the cab.

 

[Monkeynono]

Quick lurking brings up an issue with the hpfp gasket leaking.